Fundamental and application of aerobic granulation technology for wastewater treatment（16）

Source： | Date: 2011-06-15 | Hits:

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Microbial diversity

Microbial diversity of aerobic granules has been studied by molecular biotechnology techniques (Yi et al., 2003;

Tay et al., 2002d; Jang et al., 2003; Meyer et al., 2003; Tsuneda et al., 2003). Heterotrophic, nitrifying, denitrifying,

P-accumulating bacteria, and glycogen- accumulating bacteria have been identified in aerobic granules developed

under different conditions (Jang et al., 2003; Meyer et al., 2003; Tsuneda et al., 2003; Lin et al., 2003; Liu et al.,

2003f; Yang et al., 2003b). The microbial diversity of aerobic granules is closely related to the composition of

culture media, in which they are developed and structure of aerobic granules. The presence of anaerobic bacteria in

aerobic granules is likely to result in the production of organic acids and gases within the granules. These end

products of anaerobic metabolism can destroy the granules or at least diminish their long-term stability.

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